Crushing or grinding machine.



S. COOPER. GRUSHING 0R GRINDING MACHINE. nrmonwn rum JULY 20, 1908.

Patented Apr. 13, 1909.

ZSHEBTS-SHEBT 1.

in venlor:

S. COOPER. onusnme 0R GRINDING mcnmn.

APPLIOATION FILED JULY 20,1908.

Patented Apr. 13, 1909.

2 SHEETS-SHEET 2.

TORHEY Cal UNITED s'rA'r s TENT OFFICE;

SIMON COOPER, OF MEXICO, MEXICO, ASSIGNOR 0F ONE-HALF TO (11M RLES L. BERNHEIM,

OF NEW YORK. N. Y.

cnusnmo on or'mmmo Iacrmm.

Patented April 13, 1909.

Application filed July 20, 1908. Send No. 444,489.

To all whom it may concern:

Be it known that I, SIMON (kmrnn, a citizen of the United States, residing in the city of Mexico, Republic of Mexico, have invented certain new and useful Improvements in Crushing or Grinding Machines, of which the following is a full, true, and concise specification.

The invention is an improvement in the= hers in their closed and open positions, re

spectively; Fig. 111 is avertlcal section of Fig. I on a horizontal plane beneath the pulley lf with parts broken away; Fig. IV is a defal in ilan of the sleeve supporting member and ad acent parts, showing the sleeve and central shaft in section; and Fig. V is a detail of the yoke-form eccentric rod R.

As illustrated in the above figures, the frame of the machine comprises a base X,

, four upright columns N, N, N, N, one at each corner thereof, and a crown-plate Y carried by said columns. The grinding members are marked and D, respectively. The upper memberll is carried by'nn upright central shaft E, and the inner central portion of its active or operating surface is concave, as

shown, while the corresponding surface of the other member D is convexed, but to a slightly less degree, so that an outwardly converging space is provided between the two members for the reception and preliminary crushing of the ore or other material under treatment. The said material is introduced through the hopper l9 and the feed channel 18 at the end of the shaft E, as will be plain from the drawing. The remaining portions of the operating surfaces of the two members C and D are formed in substantially the same or parallel planes, so as to provide a close grinding contact between the two. The

rest of the machine is fimctioned to produce rotation of the two grinding members in relativel opposite directions and lil-zcwisc the simultaneous vertical reciprocation of the said members toward and from each other, and it is a particular feature of the invention that the said grinding members are ('OUIItGI'POlSQ-(l,

either wholly or in part, so that the work of imparting to them their rec-i]irocating movement is confined merely to the overcoming of inertia without lifting the mass of either of them against the force of gravity. Thcmomentum of comparatively large masses may thus be effectively utilized in producing a crushing impact between the grinding members with a minimum expenditure of power.

The grinding members are preferab y mutually eounterpoised, the one against the other, and in the form of apparatus shown herein the interconnecting means for producing such balance between the members is constructed ,as follows. The grinding member D is carried by a sleeve G which surrounds the shaft E and has a bearing in the crown-plate Y permitting rotary and longitudinal movement thereof. A voke K is secured to the lower extremity of the sleeve G between the pulley il thereon and the retaining thrust-nut 2i so as to be longitudinally immovable thereon but permitting rotation of the shaft within it. A set of four levers, M, M, M M, is pivotally connected to the opposite ends of the yoke, the point of connection being indicated by 3. The lower ends of each of the levers M, M, M, M, are

pivoted to the studs 11 and 12, respectively,

of a collar L, which collar is carried by the shaft E and held against longitudinal movement thereon by the pulley J and the fixed collar 22. The levers M, M, M M, are fulcrumcd at intermediate points 7, 8, 9, and It), to the columns of the frame, so that the downward pressure on the sleeve G thus becomes counteracted by the downward pressure on the shaft E, and preferabl the location of the fulcrum points is sue that the two members carried by the shaft and sleeve substantially counterbalance'each other.

Reciprocating movement is imparted to the shaft and sleeve by means of toggle links P, P, P, P, arranged in pails on each side of the shaft, the links P, P being pivoted to the oke K at the points 14 and 15, respective y, and the links P and I being pivoted to the collar L at the points 12 and 11, re-

s ieetivelv (Fig. ill). The adjacent ends of tie toggle links of each pair are pivotall connected by the studs 16 and 17 to the arms of a voke-l'orm eccentric rod li- (Fig. \"l by means ol' which the toggle links are actuator 'lhe eccentric rod ll is rocipromitod in a latoral direction by means oi the eccentric 'l on power pulley.

In operation the sleeve. (1: aml the shall It within the said sleeve, are rotated in opposite directions by means of their pullers ll and J. the sleeve rotating within the collar l and the slmlt E within the collar l., both ol" which collars are held against rotation by their connected links and lovers. 'lhc wrnshing blow upon the material in what miglit be termed a helical or spiral direction. The material umler treatment and resting on the lower grinding member moves slowly toward the periphery thereof either by gravity or by virtue of the centrifugal eil'ect, or both, and escapes oil the outer edge where -it may be collected by any suitable means,

not heroin shown.

Between the lower grinding member 1) and the crown plate Y the drawings show a ru'oher gasket or bntler 20 for preventing injuriulls contact between the said member and the frame of the machine.

I claim the following as my invention 1. The combination, in a machine of the kind described, of two eounterpoised and relatively rotary grinding members having a. feed channel leading into the space between them and means for causing mutual approach and separation of said members during their said rotation.

The material fed into the hopper 1S),

'the power shal't l'. which is driven by the i l l i l l l l 2. In a ma'ehine ol' the kind referred to, two relatively rotarv grimling members, driving means therefor aml means for reeiprorating said members toward and from each other during their said rotation, in combination with interconneeting means whereby one ol said members aml its operating muneetions substantially counterbalnm'os tho other member aml its operating connections.

3. in a machine of the kind described, two grinding or crushing members mounted for vertical reciprmation from and toward each other, iuterconnocting mechanism between said members whereby the one counlorbalam-es the other, and means connected to said mechanism for reciprocating said momlwrs.

4. lo a grinding machine, a shaft carrying one of the grinding members, a sleeve surrounding said shaft and carrying the other grinding memb r, said shaft and sleeve being adapted for rotary and long tudinal reciproeatory movement, and means for producing such movements in each of said parts and in relatively opposite directions.

In a. grinding machine, a shaft carrying one. of the grinding members, a sleeve surrounding said shaft and carrying the other, said shaft and sleeve being each mounted for independent vertical movement, in combination with connterbalanciug connections between said shaft and sleeve, whereby the pressure on one eimnterl)alances or opposes the pressure on the other, and means for relatively rotating said grinding members.

6. in a grinding machine, two mutualh counterpoised and relatively rotatory grimling members and means for reciprocating the same toward and from each other, comprising a pair of toggle links aml means for operating said links.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

Sl.\l()1\' (-OOllili.

\Viti i esses:

1). V. CmsM, A. SORIANO. 

